Pirates. Nick Lachey. And Vanessa Minnillo.

That's all you need to know about next week's Hawaii Five-O episode, isn't it? Titled "Powa Maka Moana," this real-life engaged couple will appear on the February 14 installment of the CBS drama as... an engaged couple.

The guest-starring stint will mark Minnillo's second primetime appearance in just a couple weeks, following her humorous stint on 30 Rock. Get your first look at the upcoming episode via this CBS preview:

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.